2018 MERCEDES-BENZ S-CLASS COUPE air condition

Wide-angle view
Sy stem failure
If th ere is no operational readiness, thefo llowing
message appears in the multimedia sy stem:
Sy stem limitations
The rear view camera will not function or will
only pa rtially function in thefo llowing situations:
RThe trunk lid is open.
RThere is heavy rain, snow or fog.
RThe light conditions are poor, e.g. at night.
RThe camera lens is obstructed, dirty or mis‐
te d up. Obser vethe no tes on cleaning the
re ar view camera (
→page 336).
RThe camera or rear of your vehicle is dam‐
aged. In this case, ha vethe camera and its
position and setting checked at a qualified
specialist workshop.
The field of vision and other functions of there ar
view camera may be restricted due toadditional
accessori es onthere ar of theve hicle (e.g.
license plate brac ket or bicycle rack ).
% The contrast of the display may be impaired
by direct sunlight or by other light sources,
e.g. when driving out of a garage . In this
case, pay particular attention. %
Ifth e display operation is considerably
impaired, e.g. due topixel er rors, ha vethe
display repaired or replaced.
Obser vethe no tes on cleaning there ar view
camera (
→page 336).
360° camera
Fu nction of the 360° Camera
The 360° Camera is a sy stem that consists of
fo ur cameras. The cameras co verth e immediate
ve hicle sur roundings. The sy stem assists you,
e.g. when parking or at exits with reduced visibil‐
ity.
The 360° Camera is only an aid. It is not a sub‐
st itute foryo ur attention tothe sur roundings.
The responsibility for safe maneu vering and
pa rking remains with you. Make sure that there
are no persons, animals or objects in the maneu‐
ve ring area while maneu vering and pa rking in
parking spaces.
The sy stem evaluates images from thefo llowing
cameras:
RRe ar view camera
Driving and parking 18
3

Traf fic Sign Assist detects traf fic signs wi thmul‐
tifunction camera 1and assist syo uby display‐
ing de tected speed limits and overtaking restric‐
tions in the instrument clus ter.The camera also
de tects traf fic signs wi thare striction indicated
by an additional sign (e.g. in wet conditions).
Wa rning when the maximum permissible
speed is exceeded
The sy stem can warnyouif yo u unin tentional ly
exc eed the maximum permissible speed. Todo
th is, you can specify inthe multimedia sy stem
by how much the maximum permissible speed
can be exceeded before a warning is issued. You
can specify whe ther thewa rning is tobe just a
visual warning or an acoustic one as well. If the
automatic speed accep tance forAc tive Dis tance
Assist DISTRONIC is acti vated, thewa rnings are
suppressed. Display in
the Instrument Display
1Pe rm issible speed
2Perm issible speed when there is a restriction
3Ad ditional sign with restriction
% Display of speed restriction signs has priority
ove rot her recognized traf fic signs, e.g. over‐
ta king restriction signs.
Since Traf fic Sign Assist also usesthe data
st ored in the navigation sy stem, it can update
th e display in thefo llowing situations without
de tecting traf fic signs:
RWhen theve hicle changes roads, e.g. for a
free wayentr yor exit lane.
RWhen a village or city boundary is passed
which is stored in the digital map.
Traf fic Sign Assist is notavailable in all coun‐
tries. If it is una vailable, display 1is shown in
th e speedome ter.
Sy stem limitations
The sy stem may be impaired or may not function
in thefo llowing situations:
RIf yo u are driving in conditions of poor visibil‐
ity, e.g. due toinsuf ficient illumination of the
ro ad, highly variable shade conditions, or due
to rain, sno w,fog or heavy spr ay.
19 4
Driving and pa rking

System limitations
No lane-cor recting brake application occurs in
th efo llowing situations:
RYo u clear lyand actively steer, brake or accel‐
erate.
RYo u ha veswitched on the turn signal indica‐
to r.
RA driving safe ty system inter venes, such as
ESP®, Ac tive Brake Assi stor Active Blind
Spot Assi st.
RYo u ha veadop ted a sporty driving style with
high cornering speeds or high rates of accel‐
eration.
RESP®is deactivated.
RIf a loss of tire pressure or a defective tire
has been de tected and displ ayed.
The sy stem may be impaired or may not function
in thefo llowing situations:
RIf th ere is poor visibility, e.g. due toinsuf fi‐
cient illumination of thero ad, highly variable
shade conditions, or due torain, sno w,fog or
heavy spr ay.
RThere is glare, e.g. from oncoming traf fic, the
sun or reflections.
RIf th ere is dirt on the windshield in the vicin‐
ity of the multifunction camera or the camera
is mis ted up, damaged or obscured.
RNo or se veral, unclear lane markings are
present for one lane, e.g. near roadwor ks.
RThe lane markings are worn, dark or co vered.
RThe dis tance totheve hicle in front is too
small and the lane markings thus cannot be
de tected.
RThe lane markings change quickl y,e.g. lanes
branch off, cross one ano ther or mer ge.
RThe roadw ayisvery nar row and winding.
Ve hicles with Driving Assistance pac kage or
Driving Assistance Plus pa ckage: Active Lane
Ke eping Assist uses radar sensors tomonitor
se veral areas around theve hicle. If thera dar
sensors in there ar bumper are dirty or co vered
with snow ,th e sy stem may be impaired or may
not function. If an obs tacle in the lane in which
yo u are driving has been de tected, no lane-cor‐
re cting brake application occurs .Ac
tivating Active Lane Keeping Assist
&
WARNING Risk of accident despite
Ac tive Lane Keeping Assist warning
A lane-cor recting brake application cannot
al wa ys bring theve hicle back into the origi‐
nal lane.
#Alw aysst eer, brake or accelera teyour‐
self, especially if Active Lane Keeping
Assist warnsyo u or makes a lane-cor‐
re cting brake application.
&
WARNING Risk of accident despite inter‐
ve ntion of Active Lane Keeping Assist
Ac tive Lane Keeping Assist does not de tect
traf fic conditions or road users. In very rare
cases, the sy stem may make an inappropri‐
ate brake application, e.g. af ter intentional ly
driving over a solid lane marking.
The brake application can be inter rupte d at
any time if yousteer slightly in the opposite
direction.
202 Driving and parking

Instrument Displayoverview
&
WARNING Risk of accident due toan
instrument display malfunction
If th e Instrument Display has failed or mal‐
functioned, you may not recognize function
re strictions applying tosaf etyre leva nt sys‐
te ms.
The operating saf etyof your vehicle may be
impaired.
#Drive on carefull y.
#Have theve hicle checked immediately
at a qualified specialist workshop.
Mercedes‑AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may failto rec‐
ognize dangers.
If th e operating saf etyof your vehicle is
impaired, park theve hicle safely as soon as pos‐
sible. Contact a qualified specialist workshop. Instrument display
1Speedome
ter
2Multifunction display
3Ta ch ome ter
4Coolant temp erature gage
5Fu el le vel and fuel filler flap location indica‐
to r
% This display is an example. Inst ead oftach ‐
ome ter3 other displa ysare also possible.
The segments in speedome ter1 indica tethe
sy stem status forth efo llowing:
RCruise control (→page 160)
RAc tive Dis tance Assist DISTRONIC
(→pa ge 162)
Ve hicles with Traf fic Sign Assis t:De tected
instructions and traf fic signs appear in the
speedome ter (
→page 193).
* NO
TEEngine damage duetoexc essively
high engine speeds
The engine will be damaged if you drive with
th e engine in theov errevving range.
#Do not drive wi th the engine in theove r‐
re vving range.
In tach ome ter3 theove rrev ving range is
shown in red. When theove rrev ving range is
re ached, the fuel supply is inter rupted toprotect
th e engine.
During normal operating conditions, coolant
te mp erature display 4may rise to248 °F
(120 °C).
204 Instrument Display and on-board computer

#Tomake an eme rgency call: press SOS
button co ver2 briefly toopen.
#Press and hold SOS button 4for at least
one second.
A call is triggered with the Mercedes-Benz
emer gency call sy stem.
#To make an MB In focall: press button 3.
This initiates a call tothe Mercedes-Benz
Cus tomer Assis tance Center.
An emergency call can be initia tedeve n if a
breakdown assist ance or MB Infocall is active.
This has priority over all other active calls.
Calls via theove rhead control panel are only
possible with an available mobile phone net‐
wo rk.
Fu rther information on Mercedes-Benz mbrace
®
and other services can be found at: http://
www .mbusa.com Inf
ormation onthe emer gency call sy stem
&
WARNING Risk of accident and injury
despite pressing the SOS button
Even if youpr ess the SOS button in an emer‐
ge ncy, remaining in theve hicle may be dan‐
ge rous forth efo llowing reasons:
Ryo u see smo keinside or outside of the
ve hicle, e.g. if there is a fire afte r an acci‐
dent
Rth eve hicle is on a dangerous section of
ro ad
Rtheve hicle is not visible or cannot easily
be seen by otherroad users, particular ly
when dark or in poor visibility conditions
#Lea vetheve hicle immediately in this or
similar situations as soon as it is safe to
do so.
#Mo vetoa safe location along with other
ve hicle occupants.
#In such situations, secure theve hicle in
accordance with national regulations,
e.g. with a warning triangle.
Au tomatic eme rgency call
The emer gency call is initia ted in thefo llowing
situations:
RThe airbag is deplo yed.
RThe Emer gency Tensioning Devices are trig‐
ge red.
Yo u can end an automatically initiated emer‐
ge ncy call yourself af ter 60 seconds.
Manual emer gency call
An emer gency call can be initia ted manually via
th e SOS button in theove rhead control panel
(
→page 290).
If yo u lea vetheve hicle immediately af ter press‐
ing the SOS button, you do not kn owif
Mercedes-Benz mbrace
®has successfully made
th e emer gency call.
Initiated eme rgency call
When a voice connection is es tablished between
th e Cus tomer Assis tance Center and theve hicle
occupants, thefo llowing options apply:
RIf th eve hicle occupants are responsive: the
Mercedes-Benz Cus tomer Assis tance Center
Multimedia sy stem 291

ASSYST PLUS serv ice interval display
Fu nction of the ASS YST PLUS serv ice interval
displ ay
The ASS YST PLUS service inter val display in the
instrument display pr ovides information on the
re maining time or dis tance be fore the next
service due date.
Yo u can hidethis service message using the
back button on the left-hand side of thesteering
wheel.
Yo u can obtain fur ther information concerning
th e servicing of your vehicle from a qualified
specialist workshop, e.g. an authorized
Mercedes-Benz Center.
Displaying the service due da te
On-board computer:
,Service.ASSYST PLUS
The next service due date is displa yed.
#To exitth e displa y:press the back button
on the left-hand side of thesteering wheel. Make sure
toobser vethefo llowing fur ther rela‐
te d subjec t:
ROperating the on-board computer
(→page 205).
Car rying out maintenance workatregular
inter vals
* NO
TEPremature wearthro ugh failure to
obser veservice due dates
Service workwhich is not car ried out at the
ri ght time or incomple tely can lead to
inc reased wear and damage totheve hicle.
#Alw ays obser vethe prescribed service
inter vals.
#Alw ays ha vethe prescribed service
wo rkcar ried out at a qualified specialist
wo rkshop.
Special service requ irements
The prescribed service inter val is based on nor‐
mal operation of theve hicle. Maintenance work will need
tobe per form ed more of ten if theve hi‐
cle is operated under arduous conditions or
increased loads.
Examples of arduous operating conditions:
Rre gular city driving with frequent intermedi‐
ate stops
Rmainly short-dis tance driving
Rfrequent operation in mountainous terrain or
on poor road sur faces
Rwhen the engine is of ten le ftidling for long
periods
Roperation in particula rly dusty condition s
and/o rif air-recirculation mod eis frequentl y
used
In these or similar operating conditions, ha vethe
interior air filter, engine air cleaner, engine oil
and oil filter etc. changed more frequently. The
tires must be checked more frequently if the
ve hicle is operated under increased loads. Fur‐
th er information can be obtained at a qualified
specialist workshop.
Maintenance and care 323

Tire pressure
Note s on tire pressure
&
WARNING Risk of accident due toinsuf‐
fi cient or excessive tire pressure
Underinfla ted or overinfla ted tires pose the
fo llowing risks:
RThe tires may bur st, especially as the
load and vehicle speed increase.
RThe tires may wearexc essively and/or
une venly, which may greatlyimpair tire
traction.
RThe driving characteristics, as well as
st eering and braking, may be greatly
impaired.
#Comply with there commended tire
pressure and check the tire pressure of
all tires including the spare wheel regu‐
larly:
Rat least once a month
Rwhen the load changes
Rbefore embarking on a longe r journey
Rif operating conditionschange, e.g. off-
ro ad driving
#Ad just the tire pressure as necessar y.
Driving withtire pressure that is too high or too
low can:
RSho rten the service life of the tires.
RCause increased tire damage.
RAd versely af fect driving characteristics and
th us dr iving saf ety, e.g. due toaquaplaning.
&
WARNING Risk of an accident due to
insuf ficient tire pressure
Ti re s with pressure that is too low can over‐
heat and bur stas a result.
In addition, they also suf fer from excessive
and/or ir regular wear, which can significantly
impair the braking properties and the han‐
dling characteristics.
#Av oid excessively low tire pressures in
all the tires, including the spare wheel.
Tire pressure which is too low can cause:
RTire defects as a result of overheating
RImpaired handling characteristics
RIrre gular wear
RIncreased fuel consum ption
&
WARNING Risk of accident from exces‐
sive tire pressure
Ti re s with excessively high pressure can
bur stbecause they are damaged more easily
by highw ayfill, pot holes etc.
In addition, they also suf fer from ir regular
we ar, which can significantly impair the brak‐
ing properties and the handling characteris‐
tics.
#Av oid excessively high tire pressures in
all the tires, including the spare wheel.
Excessively high tire pressure can result in:
RIncreased braking dis tance
RImpaired handling characteristics
RIrre gular wear
Wheels and tires 363

RImpaired driving comfort
RSusceptibility todamage
&
WARNING Risk of accident caused by
re peated drop in tire pressure
If th e tire pressure drops repeatedly, the
wheel, valve or tire may be damaged.
Insuf ficient tire pressure can cause the tires
to bur st.
#Inspect the tire for signs of fore ign
objects.
#Check whe ther the wheel or valve has a
leak.
#If yo u are unab leto rectify the damage,
conta ct aqualified specialist workshop.
Yo u can find information on tire pressures for
th eve hicle's factor y-ins talled tires on thefo llow‐
ing labels:
RTi re and Loading Info rmation placard on the
B‑pillar of your vehicle (→page 369).
RTire pressure table on the inside of the fuel
fi ller flap (→page 364). Observ
eth e maximum tire pressure
(
→page 375).
Us e a suitabl epressu regauge tocheck the tire
pressure. The outer appearance of a tire does
not permit any reliable conclusion about the tire
pressure.
Ve hicles with a tire pressure monitoring sys‐
te m: You can also check the tire pressure using
th e on-board computer.
Only cor rect tire pressures when the tires are
cold. Conditions for cold tires:
RThe vehicle has been par ked with the tires
out of direct sunlight for at least thre e hours.
RThe vehicle has tr aveled less than 1 mile
(1.6 km).
A rise in the tire temp erature of 18°F (10 °C)
increases the tire pressure byappr ox.10 kPa
(0.1 bar/1.5 psi). Take this into account when
ch ecking the tire pressure of warm tires.
The tire pressure sre commended for increased
load/speed in the tire pressure table can af fect
th eride comfort.
&
WARNING Risk of accident from unsuita‐
ble accessori es onthe tire valves
If yo u mount unsuitable accessories onto tire
va lves, the tire valves may be overloaded and
malfunction, which can cause tire pressure
loss. Tire pressure monitoring sy stems for
re trofitting will cause the tire valve toremain
open. This can also result in tire pressure
loss.
#Only scr ewstandard valve caps or valve
caps specifically appr ovedby
Mercedes-Benz foryo ur vehicle onto
th e tire valve.
Ti re pressure table
The tire pressure table is on the inside of the
fuel filler flap.
% The data shown in the images is example
data.
364 Wheels and tires